Date: Mon, 13 Mar 2006 10:10:36 +0200 (EET) From: Dmitry Pryanishnikov <dmitry@atlantis.dp.ua> To: John-Mark Gurney <gurney_j@resnet.uoregon.edu> Cc: njl@freebsd.org, current@freebsd.org Subject: Re: defaults/rc.conf v1.272 Message-ID: <20060313095651.Q33497@atlantis.atlantis.dp.ua> In-Reply-To: <20060312235642.GM840@funkthat.com> References: <20060312235642.GM840@funkthat.com>
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Hello! On Sun, 12 Mar 2006, John-Mark Gurney wrote: > After I set the cx_lowest back to HIGH, the machine booted perfectly > fine (less than a minute from kernel load to login prompt).. Could > this be a problem of not starting powerd or something that makes sure > we don't go into a low power state when running? Power savings are > good, but making FreeBSD not bootable isn't... I waited over five Well, I reported a similar unacceptable performance in non-C1 state a week ago in freebsd-acpi. I'm not alone, I've seen such reports before. But it seems there is no solutions to this problem (or nobody cares ;). My ASUS M5A notebook remains usable in C2 state, but performance is still boring, and timer-based delays are merely broken: ========================================================================== My hardware claims only C1 and C2, if notebook was started with AC power: hw.acpi.cpu.cx_supported: C1/1 C2/1 and C1-C3 if it was started on batteries: hw.acpi.cpu.cx_supported: C1/1 C2/1 C3/1 (BTW, is it normal?) If I switch to C2, it not only slows machine down, but also breaks timer-based delays: root@notebook# date;sleep 5;date Sat Mar 4 03:21:44 EET 2006 Sat Mar 4 03:21:49 EET 2006 root@notebook# sysctl hw.acpi.cpu.cx_lowest=C2 hw.acpi.cpu.cx_lowest: C1 -> C2 root@notebook# date;sleep 5;date Sat Mar 4 03:22:46 EET 2006 Sat Mar 4 03:23:18 EET 2006 (redraw delay in 'top -s 1' raises to 6-7 seconds). C3 (when it's available) looks the same as C2. Of course I run my notebook forced to C1. I would be glad to provide any additional info in order to help developers to fix the issue. I'm a novice in ACPI-related stuff so I don't dig into it myself. Sincerely, Dmitry -- Atlantis ISP, System Administrator e-mail: dmitry@atlantis.dp.ua nic-hdl: LYNX-RIPE
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